Anyone has experienced the low tire pressure indicator comes on when the outside temperature is cold?

It happened to me last week. When I started my car, an alarm went on but I did not know what it was at first. Then I saw the low tire pressure indicator lit up. The outside temp was 29F. What puzzles me is if it is a faulty reading from the sensor, would you think the indicator will go away once the tires reached operating temp? Or I actually am low on air? I checked all four tires when I got home and none looked low. Any suggestion?

 

did you actually check with a gauge?
or just visually.....

 

Yeah, it did it to me couple of weeks ago, car was sitting outside all night, the buzz went off and light came on, first I thought i had flat, but after I drove it home and could not find and nails or screws, then checked the tire perswure, sure enough one of the tire was at 29psi...just check your tire pressure with tire gauge, with our low profie tires? it dont look much differnt weather its at 25 or 35

 

yea mine went off the 1st night it dipped under 40 degrees. I checked all of my tires and they all had 29 or 30 psi. You probably need air in all 4.

 

Another thing you can do is put nitrogen in your tires.

 

The indicator went on this week (first real cold weather). Today I checked the pressure and it was like 32-33 psi. I filled to 35-36 psi, but the light remained on. Does it take time to go off?

 

fill the pressure to 35 after the car has been sitting overnight to let the tires cool down. First thing in the morning go fill the tires to spec. Drive for 5 to 15 mins and the sensor should go off

 

How would this work? The atmosphere is already 80% nitrogen anyway--how would replacing the rest of the gasses help?

 

sensor will not go off right away.. took my car 10 min but it went off

 

This site better explains the benefits of having nitrogen in tires then me.

http://www.techcentralstation.com/111604D.html

 

Don't check or fill air after you drive. WAIT 3 hours or the next day. You have to let the tires cool. While driving the rubber expands, so let it cool for a min of 3 hours after driving.

 

Same thing happened to me last night when it was 22 degrees out. I filled them up to about 33(to allow for some expansion if the weather heats up a bit in the next few days.. which it will).

 

You must check the pressures b4 driving and while the tires are cold (with a digital pressure gauge for accuracy).

 

Couple reasons to put Nitrogen in your tires:

-Compressed air has a lot of moisture: Moisture can corrode your $3000+ rims/tires and it is mostly responsible for the fluctuations in your tire pressure.

-Less fluctuation in tire pressure = up to 25% more mileage out of your tires and slightly better gas mileage (+1-3 mpg on average).

-Nitrogen, because of the filtration process, is dry.

-Nitrogen is 6 times less likely to permeate through rubber.

 

ummm......1 thing......isnt it extremely flammable...